Android HelloWorld App Crashes On Implementation of Second Activity

Question

I am attempting to complete the Android HelloWorld App using Eclipse and the ADT. However, the app always crashes when I implement the second activity and press the \"Send\" but

Answer 1

I had similar problem. When I rechecked the tutorial from which you are also learning i.e. developer.android, I found that in the onCreate method of DisplayMessageActivity class the following codes of lines are causing disruptions,(I have commented it)

if (savedInstanceState == null) {
       getSupportFragmentManager().beginTransaction()
               .add(R.id.container, PlaceholderFragment.newInstance(message)).commit();
   }

Please delete these lines. If you carefully observe the tutorial there they present the code of onCreate at last to cross check, there these line are missing. :)